I recently made a loadtest against through varnish. First I received a very high response time and found out that varnish was maxing the maximum nr of threads.
I updated thread_min = 5 and thread_max = 300 and recevied much better resp. times. Then I increased the nr of concurrent users and made another loadtest. The strange thing here was that I received high resp. times but the threads stopped at 238. The "N worker threads not created" increased rapidly. I increased the threads again and changed listen_depth to 2048. Here is all the numbers: 238 0.00 0.22 N worker threads created 1318 4.98 1.21 N worker threads not created 0 Debug - "Create worker thread failed 12 Cannot allocate memory" 0 Debug - "Create worker thread failed 12 Cannot allocate memory" 0 Debug - "Create worker thread failed 12 Cannot allocate memory" 0 Debug - "Create worker thread failed 12 Cannot allocate memory" 0 Debug - "Create worker thread failed 12 Cannot allocate memory" 0 Debug - "Create worker thread failed 12 Cannot allocate memory" 0 Debug - "Create worker thread failed 12 Cannot allocate memory" 0 Debug - "Create worker thread failed 12 Cannot allocate memory" default_ttl 120 [seconds] thread_pools 2 [pools] <<<< thread_pool_max 400 [threads] <<<< thread_pool_min 10 [threads] <<<< thread_pool_timeout 120 [seconds] thread_pool_purge_delay 1000 [milliseconds] thread_pool_add_threshold 2 [requests] thread_pool_add_delay 10 [milliseconds] thread_pool_fail_delay 200 [milliseconds] overflow_max 100 [%] rush_exponent 3 [requests per request] sess_workspace 8192 [bytes] obj_workspace 8192 [bytes] sess_timeout 5 [seconds] pipe_timeout 60 [seconds] send_timeout 600 [seconds] auto_restart on [bool] fetch_chunksize 128 [kilobytes] vcl_trace off [bool] listen_address 0.0.0.0:80 listen_depth 2048 [connections] <<<< srcaddr_hash 1049 [buckets] srcaddr_ttl 30 [seconds] backend_http11 off [bool] client_http11 off [bool] cli_timeout 5 [seconds] ping_interval 3 [seconds] lru_interval 2 [seconds] cc_command exec cc -fpic -shared -Wl,-x -o %o %s max_restarts 4 [restarts] max_esi_includes 5 [restarts] cache_vbe_conns off [bool] connect_timeout 400 [ms] cli_buffer 8192 [bytes] diag_bitmap 0x0 [bitmap] Why do I get "Create worker thread failed 12 Cannot allocate memory" when I had 1900MB free RAM and 65GB free Disk on the server? Any ideas? If "N worker threads not created" is increasing, is that a bad sign? Thanks Duja _______________________________________________ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc